HEX atlas value

#EFE99F

#EFE99F is a warm yellow HEX color close to Pale Goldenrod. According to Colors Encyclopedia, it converts to RGB 239, 233, 159, HSL 55, 71%, 78%, has luminance 0.7913, and belongs to the pastel group.

#EFE99F Sample readable text
HEX #EFE99F
RGB rgb(239, 233, 159)
HSL hsl(55 71% 78%)
CMYK cmyk(0, 3, 33, 6)
Luminance 0.7913
Contrast Black 16.83:1White 1.25:1

CSS

--color-efe99f: #EFE99F;
.background-efe99f { background-color: #EFE99F; }
.text-efe99f { color: #EFE99F; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.7913
Black text16.83:1AA Pass
White text1.25:1AA Fail
hexCanonical HEX value
rgbRed, green, blue channels
hslHue, saturation, lightness
cmykApproximate print conversion
wcagAA and AAA contrast options
harmoniesMathematical harmony sets
variantsGenerated tone variants
nearestColorsKnowledge graph neighbors
Download JSON Open API
Structured sections
Color systems
{"hex":"#EFE99F","rgb":[239,233,159],"hsl":[55,71,78],"cmyk":[0,3,33,6],"luminance":0.7913,"contrast":{"black":16.83,"white":1.25}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A","#36454F"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":16.83,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.25,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#FCFBEE","hex":"#FCFBEE","family":"yellow","bestTextColor":"#000000","contrastBlack":20.17,"contrastWhite":1.04,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Butter","hex":"#FFF1A8","family":"yellow","bestTextColor":"#000000","contrastBlack":18.4,"contrastWhite":1.14,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#FBF293","hex":"#FBF293","family":"yellow","bestTextColor":"#000000","contrastBlack":18.22,"contrastWhite":1.15,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Pale Goldenrod","hex":"#EEE8AA","family":"yellow","bestTextColor":"#000000","contrastBlack":16.76,"contrastWhite":1.25,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Vanilla","hex":"#F3E5AB","family":"yellow","bestTextColor":"#000000","contrastBlack":16.61,"contrastWhite":1.26,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]}]
AI context
{"semanticGroups":["warm yellow","pastel","pastel yellow","Pale Goldenrod adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","soft UI backgrounds","highlight and warning systems"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/efe99f.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/pale-goldenrod.json","https://www.colorsencyclopedia.com/api/colors/vanilla.json","https://www.colorsencyclopedia.com/api/colors/khaki.json"]}
Harmonies
{"complementary":"#9FA6EF","analogous":["#EFC09F","#CEEF9F"],"triadic":["#9FEFE8","#E89FEF"],"tetradic":["#9FEFC0","#9FA6EF","#EF9FCE"],"splitComplementary":["#9FCEEF","#C09FEF"],"monochromatic":["#FCFBEE","#EFE99F","#E1D551"]}
Variants
{"light":"#FCFBEE","dark":"#E1D551","saturated":"#FBF293","desaturated":"#E2DEAB","pastel":"#FFFFFF","neon":"#FFF9B8"}
Nearest named colors
[{"slug":"pale-goldenrod","name":"Pale Goldenrod","hex":"#EEE8AA","distance":11.090536506409418},{"slug":"vanilla","name":"Vanilla","hex":"#F3E5AB","distance":13.2664991614216},{"slug":"khaki","name":"Khaki","hex":"#F0E68C","distance":19.261360284258224},{"slug":"butter","name":"Butter","hex":"#FFF1A8","distance":20.024984394500787},{"slug":"soft-peach","name":"Soft Peach","hex":"#FAD7A0","distance":21.118712081942874}]

HEX meaning and use

About #EFE99F

#EFE99F is classified as a warm yellow value with pastel visual character. #EFE99F is visually closest to Pale Goldenrod, a named yellow color with HEX #EEE8AA.

The RGB channels are 239, 233, and 159, with red carrying the strongest channel weight. In HSL, the hue is 55deg with 71% saturation and 78% lightness, so this page treats it as a high-saturation, light atlas color rather than a generic swatch.

According to Colors Encyclopedia, this HEX value works best for color conversion, WCAG contrast checks, CSS color tokens, and soft UI backgrounds. Its luminance is 0.7913, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 11.09, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text16.83:1AA Pass
White text1.25:1AA Fail

AA text options: #000000, #1A1A1A, #36454F.

AAA text options: #000000, #1A1A1A, #36454F.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #EFE99F needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000016.83:1 · AAA
White text#FFFFFF1.25:1 · Fail

Accessible Alternatives

#FCFBEE#000000 text · best 20.17:1#FCFBEE
Butter#000000 text · best 18.4:1#FFF1A8
#FBF293#000000 text · best 18.22:1#FBF293
Pale Goldenrod#000000 text · best 16.76:1#EEE8AA
Vanilla#000000 text · best 16.61:1#F3E5AB

Generated Palette

#EFE99F#EFE99F
#9FA6EF#9FA6EF
#EFC09F#EFC09F
#CEEF9F#CEEF9F
#FCFBEE#FCFBEE
#E1D551#E1D551

Color Harmonies

#9FA6EF#9FA6EF
#EFC09F#EFC09F
#CEEF9F#CEEF9F
#9FEFE8#9FEFE8
#E89FEF#E89FEF

Variants

#FCFBEE#FCFBEE
#E1D551#E1D551
#FBF293#FBF293
#E2DEAB#E2DEAB
White#FFFFFF
#FFF9B8#FFF9B8

Nearest Named Colors